Method for making metropolitan area three-dimensional visible and measurable hypsometric maps

A production method and topographic map technology, applied in the field of map surveying and mapping, can solve the problems that the three-dimensional structure of buildings is not measurable, and it is difficult to express the height of buildings, etc.
CN1664884AInactive Publication Date: 2005-09-07西安四维航测遥感中心
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
西安四维航测遥感中心
Publication Date
2005-09-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

This invention relates to map drawing field and in detail to the maps of each proportions by photo measurement and remote sensing technique and especially to the measurable space map process method of three-dimension. The method comprises the following steps: a, data collecting; b, establishing three-dimensional mode of city architecture; c, decorating the three-dimensional map; d, converting the project with equal visual angle; f, canceling the three-dimensional mode; g, romancing the mode; f, decorating the plane effect of the space graph; I, outputting the generated graph.
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Description

Technical field:

[0001] The invention relates to the field of map surveying and mapping, in particular surveying and mapping topographic maps of various scales with photogrammetry and remote sensing technology, especially a method for making three-dimensional visible and measurable three-dimensional topographic maps of urban areas. Background technique:

[0002] Using photogrammetry and remote sensing technology to survey and map topographic maps of various scales is a traditional technical method with a history of nearly a hundred years. It has been recognized and continued to use the method of contour lines to represent the ups and downs of natural landscapes. With the rapid development of social economy and the rapid expansion of urban construction, the traditional contour line method is difficult to express the height of buildings; in addition, the urban landscape map generated by the center projection method has stereoscopic visual effects, but the three-dimensional ster...

Claims

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